@article{ref1,
title="Smallpox--a review",
journal="Deutsche Medizinische Wochenschrift",
year="2002",
author="Enders, M. and Tewald, F. and Zoller, G. and Stemmler, M. and Meyer, H.",
volume="127",
number="22",
pages="1195-1198",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0472",
doi="10.1055/s-2002-31934",
url="http://dx.doi.org/10.1055/s-2002-31934"
}